resumo
Cathodic electrodeposition of Fe and Fe/CNTs composites from Fe2O3 suspensions in 10 M NaOH was reported for the first time. Triethanolamine (TEA) was used as an additive in the plating suspension and found to improve the morphology and adhesion of the deposits. TEA acted as an effective stabilizer for carbon nanotubes (CNTs) in strongly alkaline media and facilitated incorporation of CNTs into Fe matrix during the deposition, giving rise to Fe/CNTs composites. Current efficiency, microstructure, morphology of Fe deposits and Fe/CNTs composites as well as carbon content in Fe/CNTs revealed at different deposition conditions were determined.
palavras-chave
HYDROGEN EVOLUTION REACTION; MULTIWALLED CARBON NANOTUBES; CATALYTIC ENHANCEMENT; MAGNETIC-PROPERTIES; HIGH COERCIVITY; IRON; ELECTRODEPOSITION; FILMS; NANOCOMPOSITE; COATINGS
categoria
Electrochemistry
autores
Ivanova, YA; Monteiro, JF; Horovistiz, AL; Ivanou, DK; Mata, D; Silva, RF; Frade, JR
nossos autores
Ana Lúcia Horovistiz
Bolseiro de pós-Doutoramento
Diogo Miguel Rodrigues Marinho da Mata
Bolseiro de pós-Doutoramento
Jorge Ribeiro Frade
Professor(a) Jubilado(a)
José Filipe Pinto Monteiro
Estudante de doutoramento
Rui Ramos Ferreira e Silva
Professor associado
Yuliya Ivanova
Bolseiro de pós-DoutoramentoProjectos
IERO-Iron production by Electrochemical Reduction of its Oxide for high CO2 mitigation (IERO)
agradecimentos
This work was supported by the European Unions Research Fund for Coal and Steel (RFCS) research program, under Grant agreement RFSR-CT-2010-00002, and by the Foundation for Science and Technology (FCT), Portugal (SFRH/BD/68290/2010 and PEst-C/CTM/LA0011/2013).